By means of the metric for the celestial body with electric-magnetic charge, magnetic momentum and quadrupole moment, some gravitational effect are studied.

本文利用具有电（磁）荷、磁矩和质量四极矩引力场方程的解，讨论了具有电（磁）荷、磁矩和质量四极矩天体的某些引力效应。

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The best guess for the moment is that the gravitational forces at work between the three stars could serve to dampen the oscillations at HD181068's surface.

BBC: Kepler star trio find is mystery to astroseismologists

Perhaps its greatest moment came in 1979 when it was the first telescope to observe a gravitational lens, an effect where a "massive" object bends electromagnetic radiation such as light around it.

BBC: Aye to the telescope

It seems inconceivable that a gravitational pull as strong as London's should weaken, but the city's moment will, inevitably, pass.

ECONOMIST: On a high